D3 Motorway between Žilina (Strážov) and Žilina (Brodno) - operating since... PPA CONTROLL, a.s. implemented a complete technological part of the... PPA CONTROLL, a.s. implemented the following activities in the construction... PPA CONROLL, Inc. implemented complete technological part of the Horelica... Simulator for tunnel equipment and central control system Simulation of incidents...